My cat attacked another. Can cats seriously injure or kill each other?

Thanks for using Petco Pet Education Center, formerly Petcoach! I’m sorry to hear about your kitties. Most likely is actually other cats, though raccoons or other wild animals are possible. Insect bites/stings rarely cause wounds in cats (the exception being uncommon venomous spiders). Clean all the wounds with dilute iodine or hydrogen peroxide and keep them all indoors until they are fully healed. If any cat seems painful or has a wound that is hot to the touch, painful, or swollen, that cat needs to see the vet for a more thorough cleaning and probably antibiotics. Of course I also suggest that they remain indoor cats if possible to do so. Best of luck to you and the kitties!

Thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear that you are having this issue with your kitties. That can be so stressful. The best way to reintroduce them is by doing it very slowly and for short amounts of time and always supervised while they get used to each other. If you are persistent and consistent, you may get them to get used to each other. There is a chance that they will not get along and you may have to keep them separate. Give that recommendation a try. I am hoping they become buddies! Have a nice day!

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! If he is attacking you and not trying to play then he should be confined, you should always keep him up to date on Rabies, and you should discuss behavior modification drugs with your Vet, like prozac. I would get it in a liquid form you can put in his food. I would purchase feliway diffusers for around the house, one should go in his room. You can play with him but as soon as he gets over stimulated you need to stop and walk away. If he starts to get aggressive and is coming towards you squirt him with a water bottle. It is inappropriate behavior for a cat to attack you and injury you that badly. You need to strongly consider if this is the kind of relationship you want from a pet. This may not be an easy thing to break him of. I hope this helps and i wish you the very best!

Thanks for using Petco Pet Education Center, formerly Petcoach! On your end, I would recommend that you discourage this behavior as much as possible when you see it by saying no firmly. With persistence and consistency, he is likely going to improve overtime. Sometimes a product called Feliway can help make cats feel more at ease when they are feeling stressed and this may help with your kitty. You can get that online or at your local pet store. Best of luck!

Thanks for using Petco Pet Education Center, formerly Petcoach! This is just part of the more typical behavior for a dog and the way they tend to respond to cats. If this becomes an issue and she is becoming aggressive towards your kitty, I would encourage you to contact a local qualified dog trainer who can work with you in person as most of these behaviors can be improved with in person training and time. Good luck and have a good night!

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. Unfortunately introducing another cat to another cat's environment can cause undo stress for one or both. Typically this is territorial behavior and I suspect this is what the case is with your two cats. Unfortunately this can be quite difficult to manage and address. I typically recommend starting out by trying products such as Feliway, which is a pheremone product that is supposed to keep cats calm. This product does not work in every single cat and the response varies. Anti-anxiety medications might be something to consider, but you will need to speak with your veterinarian in regards to this as you will need a prescription. If you are unable to get the two cats to be friendly towards one another and it always ends in trauma, I would seriously consider rehoming one of the cats to prevent further injury. I hope this helps guide you in the right direction. Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

Thanks for using Petco Pet Education Center, formerly Petcoach! It is difficult to know the most appropriate course of action without knowing the extent of his injuries. However, the best thing you can do is to keep him as quiet as possible for now until you can have him evaluated by a veterinarian. He likely has trauma in multiple places which is why he is so responsive to the touch. Often times after fights they have injuries beyond what you can see from the outside. They would be able to check the extent of the injuries and recommend the best course of action but for now, I recommend that you rest him as much as possible and keep an eye on him to make sure he is ok. Good luck and have a great day!